Bump dependency org.apache.maven.plugins:maven-surefire-plugin to v3.5.6

Author: renovate[bot]

pom.xml

@@ -77,7 +77,7 @@
     <maven-javadoc-plugin.version>3.12.0</maven-javadoc-plugin.version>
     <maven-source-plugin.version>3.4.0</maven-source-plugin.version>
     <maven-resources-plugin.version>3.5.0</maven-resources-plugin.version>
-    <maven-surefire-plugin.version>3.5.5</maven-surefire-plugin.version>
+    <maven-surefire-plugin.version>3.5.6</maven-surefire-plugin.version>
     <maven-failsafe-plugin.version>3.5.5</maven-failsafe-plugin.version>
     <maven-jar-plugin.version>3.5.0</maven-jar-plugin.version>
     <maven-pmd-plugin.version>3.28.0</maven-pmd-plugin.version>